I have the same problem, although it is not a flipper disc likes yours, but Lord of the rings Special DVD. The film is spread over 2 DVD's I have read a guide at IFOEdit GUIDELOTR has 12 VOB files ( between the 2 discs ) and I am sure u can only name vobs from 0-9I tried by ripping both discs seperatley then running them both through dvd2one each set of vobs being reduced to 2236MB, the problem I am having is with the IFO's, the guide does not say how to use IFOEdit to recreate a new IFO from the 2 IFOs that I have from the original 2 Discs